Design and study of fluxgate signal processing circuit 磁通门信号处理电路的设计与研究
2.
With the developing of the technology of automatic magnetic data processing , fluxgate magnetometer is widely used in geomagnetic observation now 随着地磁数据自动化处理的发展，磁通门磁力仪在地磁观测中的应用也越来越广泛。
3.
Fluxgate magnetometer is a kind of vector magnetometer which has the ability of measuring the components of magnetic field directly . the fluxgate instrument is variometer based on magnetization non - linearity of " soft " magnetic material 磁通门磁力仪是直接测量地磁场分量的矢量磁力仪，是一种基于“软”磁材料磁化特性的非线性的地磁相对记录仪器。
4.
Three kinds of common methods ( called as tuning and magnifying method , short circuit method , apparent coercive field strength method ) for fluxgate magnetometer signal detecting and their advantages and disadvantages are described in this paper 本文还介绍了三种常用的磁通门磁力仪信号检测方法：调谐放大检测、短路偶合检测和视矫顽场强度检测方法，并分析了各种方法的优缺点。
5.
By analyzing the relative documents in this domain , we summarize the theory about the method and the technology of application of detecting weak magnetism , and deal the instrument en the civil and the oversea , by means of detailed research , from the society requirement at the present , using the theory of fluxgate , the technology of fluxgate transducer and the new methods and the new components and through careful calculation in theory and the experimental debugging , we develop the supervision book system of the library , thus extend the scope of the application of weak magnetic field measurement 通过分析国内外大量的相关文献，从理论上对弱磁场的检测方法与应用技术进行了总结和归纳，并且对目前国内外弱磁检测的仪器也做了相关论述，通过对磁通门技术较详细的研究，并从目前的社会需求出发，采用磁通门理论，应用磁通门传感器技术，运用新的方法与元器件，经过洋细的理论计算与实验调试，研制了可以应用于图书馆图书监测的系统，从而扩展了弱磁测量技术的应用范围。
6.
Relations between the signal - to - noise , sensibility , demagnetizing factor , output of fluxgate sensor with its diameter , thickness and turns of core are discussed in this paper . the author of this paper also concluded some basic principle for the designing of fluxgate sensor . the author designed and produced two dimension sensors to prove the possibility of the miniaturization of fluxgate sensor 本文还分析了小型化传感器的实现可行性，分析了磁通门传感器的信噪比、灵敏度、退磁系数、感应输出与传感器磁芯直径、厚度和磁芯匝数的关系，论证了传感器小型化的可行性，总结了在设计磁通门传感器时所应遵循的基本原则，并且设计制作了两种尺寸的传感器，从实验角度论证了传感器小型化的可行性。
7.
First of all , this paper introduced the working theory of three kinds of fluxgate magnetometer sensors : single core sensor , double core sensor and ring core sensor . then the author discussed relations between noise and demagnetization coefficient , and relations between noise and dimension of fluxgate magnetometer sensors 本文从介绍磁通门传感器的分类入手，详细分析了单棒型、双棒型和环型磁通门传感器的工作原理，并且深入讨论了磁通门传感器的噪声与退磁系数的关系以及噪声与传感器尺寸的关系。
8.
As a kind of variometer , fluxgate magnetometer should has high observation precision as well as long - term stability and favorable temperature features . the compensation technology is the key for the performance of fluxgate magnetometer . this paper made an introduction about the compensation principle of fluxgate instrument 作为相对观测的磁通门磁力仪，不仅要求其观测精度应满足要求，而且还要求仪器具有长期稳定性和良好的温度特性，而对磁通门磁力仪的长期稳定性和温度特性有重要影响的部分就是仪器的补偿部分。
